feat(core): initial implementation of syncing (#17814)

packages/opencode/src/sync/event.sql.ts

@@ -0,0 +1,16 @@
+import { sqliteTable, text, integer } from "drizzle-orm/sqlite-core"
+
+export const EventSequenceTable = sqliteTable("event_sequence", {
+  aggregate_id: text().notNull().primaryKey(),
+  seq: integer().notNull(),
+})
+
+export const EventTable = sqliteTable("event", {
+  id: text().primaryKey(),
+  aggregate_id: text()
+    .notNull()
+    .references(() => EventSequenceTable.aggregate_id, { onDelete: "cascade" }),
+  seq: integer().notNull(),
+  type: text().notNull(),
+  data: text({ mode: "json" }).$type<Record<string, unknown>>().notNull(),
+})